CVE-2016-0746

NameCVE-2016-0746
DescriptionUse-after-free vulnerability in the resolver in nginx before 1.8.1 and 1.9.x before 1.9.10 allows remote attackers to cause a denial of service (worker process crash) or possibly have unspecified other impact via a crafted DNS response related to CNAME response processing.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SuSE, Mageia, GitHub code/issues, web search, more)
ReferencesDSA-3473-1
NVD severityhigh (attack range: remote)
Debian Bugs812806

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
nginx (PTS)wheezy1.2.1-2.2+wheezy4fixed
wheezy (security)1.2.1-2.2+wheezy4+deb7u1fixed
jessie1.6.2-5+deb8u4fixed
jessie (security)1.6.2-5+deb8u5fixed
stretch (security), stretch1.10.3-1+deb9u1fixed
buster, sid1.13.5-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
nginxsource(unstable)1.9.10-1high812806
nginxsourcejessie1.6.2-5+deb8u1highDSA-3473-1
nginxsourcesqueeze(not affected)
nginxsourcewheezy1.2.1-2.2+wheezy4highDSA-3473-1

Notes

[squeeze] - nginx <not-affected> (Vulnerable code not present)
http://mailman.nginx.org/pipermail/nginx/2016-January/049700.html
https://github.com/nginx/nginx/commit/4b581a7c21e4328d059bf400a059c0458fc9f806 (release-1.9.10)
https://github.com/nginx/nginx/commit/a3d42258d97ebd0b638c20976654d3edfbaf943f (release-1.9.10)

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